Application of fuzzy synthesis evaluation to coal seam-roof stability

Based on the study of coal roof conditions in Pansan mine of Huainan coalfield,a set of effective parameters for evaluation of coal roof stability is put forward,the method of quantitative evaluation and prediction of coal roof stability is proposed using fazzy synthesis evaluation.The results show that the coal seam-roof stability of Pansan mine is medium,and the stability is worse and worse from south to north and from west to east.This study can provide scientific evidences for roof safety management is excavate work faces.